Polycarboxylate mother liquor with high water-reducing, slump-retaining and sludge-resisting properties and manufacturing method thereof

A polycarboxylic acid and three-high technology, applied in the field of building materials and cement additives, can solve the problems of incompatibility at the same time, and achieve the effects of long-distance transportation and pumping construction, low process cost, and low preparation process cost

Inactive Publication Date: 2018-07-27
张玉广
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned documents all use the chain transfer agent mercaptoacetic acid or mercaptopropionic acid to improve its water-reducing or slump-retaining properties, and the two cannot be compatible at the same time.

Method used

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  • Polycarboxylate mother liquor with high water-reducing, slump-retaining and sludge-resisting properties and manufacturing method thereof
  • Polycarboxylate mother liquor with high water-reducing, slump-retaining and sludge-resisting properties and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] According to the formula of polycarboxylate three-high mother liquor, including 34 parts of methallyl polyoxyethylene ether, 4 parts of acrylic acid, 0.55 parts of sodium hypophosphite, 0.25 parts of 30% hydrogen peroxide, 0.15 parts of ammonium persulfate, 0.14 parts of vitamin C, 61.6 parts of deionized water. Mix water and polyether superplasticizer macromonomer evenly; heat up the base material; put hydrogen peroxide into the base material, put sodium phosphate and ammonium persulfate into the base material again, add acrylic acid and vitamin C to dissolve in water respectively to obtain dripping material ; drop the dripping material into the heated bottom material respectively, carry out the heat preservation reaction, add water and dilute to obtain the polycarboxylic acid mother liquor, and store it further.

Embodiment 2

[0030] According to the formula of polycarboxylate three-high mother liquor, including 31 parts of methallyl polyoxyethylene ether, 4.8 parts of acrylic acid, 0.6 parts of sodium hypophosphite, 0.4 parts of 30% hydrogen peroxide, 0.1 parts of ammonium persulfate, 0.15 parts of vitamin C, 61 parts of deionized water. Mix water and polyether superplasticizer macromonomer evenly; heat up the base material; put hydrogen peroxide into the base material, put sodium phosphate and ammonium persulfate into the base material again, add acrylic acid and vitamin C to dissolve in water respectively to obtain dripping material ; drop the dripping material into the heated bottom material respectively, carry out the heat preservation reaction, add water and dilute to obtain the polycarboxylic acid mother liquor, and store it further.

Embodiment 3

[0032] According to the formula of polycarboxylate three-high mother liquor, including 33 parts of methallyl polyoxyethylene ether, 4.5 parts of acrylic acid, 0.6 parts of sodium hypophosphite, 0.3 parts of 30% hydrogen peroxide, 0.2 parts of ammonium persulfate, 0.12 parts of vitamin C, 61.28 parts of deionized water. Mix water and polyether superplasticizer macromonomer evenly; heat up the base material; put hydrogen peroxide into the base material, put sodium phosphate and ammonium persulfate into the base material again, add acrylic acid and vitamin C to dissolve in water respectively to obtain dripping material ; drop the dripping material into the heated bottom material respectively, carry out the heat preservation reaction, add water and dilute to obtain the polycarboxylic acid mother liquor, and store it further.

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Abstract

The invention provides a polycarboxylate mother liquor with high water-reducing, slump-retaining and sludge-resisting properties and a manufacturing method thereof. The polycarboxylate mother liquor is composed of 28 to 40 parts of a polyether superplasticizer macromonomer, 3 to 8 parts of acrylic acid, 0.1 to 0.9 part of sodium hypophosphite, 0.1 to 0.8 part of hydrogen peroxide with a concentration of 30%, 0.1 to 0.6 part of ammonium persulfate, 0.1 to 0.3 part of vitamin C and 58 to 65 parts of deionized water. The polycarboxylate mother liquor with high water-reducing, slump-retaining andsludge-resisting properties provided by the invention is compatible in water-reducing and slump-retaining properties on the basis of the prior art; the performance of high sludge-resisting property isincreased; and a formula for a superplasticizer mother liquor with high water-reducing, sludge-resisting and slump-retaining properties is obtained.

Description

technical field [0001] The invention belongs to the field of building materials, and mainly relates to the field of cement additives, in particular to a polycarboxylate triple-high mother liquor with high water reduction, high mud resistance, and high slump retention, in particular to a polycarboxylate triple-high mother liquor formula and its synthesis process. Background technique [0002] Polycarboxylate Superplasticizer (Polycarboxylate Superplasticizer) is a high-performance water reducer and a cement dispersant in the application of cement concrete. Widely used in highways, bridges, dams, tunnels, high-rise buildings and other projects. Polycarboxylate high-performance water reducer is the fourth generation of high-performance water reducer developed after wood calcium, naphthalene, and amino-based high-performance water reducers. It is currently the most advanced and technologically advanced in the world. It is a high-efficiency water reducer with the best applicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/26C08F283/06C08F220/06C04B103/30
CPCC04B24/2605C04B2103/302C08F283/065C08F220/06
Inventor 张玉广
Owner 张玉广
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